For a dedicated muzzle loader the Triumph is the best so far, as I can tell, it shoots a wide range of bullets with a load that is heavy enough for a good trajectory. If you want a convertible to various cartridges my pick would be the Endeavor, its expensive but its the best I have ever owned and I have a bunch and have sold a bunch that are out dated.
If you are stuck on bolt actions there is the new Mountaineer, but a bolt action muzzleloader? a bolt cartridge gun is strong and accurate but with a breach plug gun a bolt just adds weight and wastes barrel length and the bolt does not add to the strength if you do not believe that just look at one closely and you can see that the design of the bolt is not to hold on to the barrel as it does in a cartridge gun.
The Omega is a fine gun I have one and like it and if price is a concern you might want to go that way. Personally I would avoid that foreign stuff if every one did this country would not be in trouble for jobs.